\(\left. \matrix{ {P_1} = {{{A_1}} \over {{t_1}}} = {{{p_1}{h_1}} \over {{t_1}}} = {{{m_1}g{h_1}} \over {{t_1}}} \hfill \cr {P_2} = {{{A_2}} \over {{t_2}}} = {{{p_2}{h_2}} \over {{t_2}}} = {{{m_2}g{h_2}} \over {{t_2}}} \hfill \cr} \right\}\)
\(\Rightarrow {{{P_1}} \over {{P_2}}} = {{{m_1}{h_1}{t_2}} \over {{m_2}{h_2}{t_1}}} = {{900.10.2} \over {2000.6.1}} = 1,5\)
Cẩu 1 có công suất gấp rưỡi cẩu 2.
